Question about Limited Edition Pack-ins

Silly question, but how do i get the Warzone REQ packs and Fotus armor from the Limited Edition? I’ve played a number of Warzone games but have only been able to open 3 Warzone REQ packs, none of which had the Fotus armor.

> Limited Edition includes: full-game physical disc of Halo 5: Guardians + Warzone REQ Bundle (14 Premium Requisition packs to enhance Spartan combat, FOTUS-class armor, and multiplayer emblem) + uniquely-designed Spartan-themed SteelBook® + Guardian model by Metal Earth® + Dossiers on Blue Team and Fireteam Osiris + Spartan Locke’s Classified Orders + Halo: The Fall of Reach (Animated Series) + Xbox Live Gold 14-day Trial.